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[Commit-gnuradio] [gnuradio] 02/09: whitespace only


From: git
Subject: [Commit-gnuradio] [gnuradio] 02/09: whitespace only
Date: Fri, 25 Apr 2014 16:44:34 +0000 (UTC)

This is an automated email from the git hooks/post-receive script.

trondeau pushed a commit to branch maint
in repository gnuradio.

commit 668835cb58ddee5431b9062ea1b5d04efa69c087
Author: Michael Dickens <address@hidden>
Date:   Thu Apr 24 09:57:49 2014 -0400

    whitespace only
---
 gnuradio-runtime/lib/thread/thread.cc |  22 +-
 gr-audio/lib/osx/osx_sink.cc          | 738 +++++++++++++++++-----------------
 2 files changed, 380 insertions(+), 380 deletions(-)

diff --git a/gnuradio-runtime/lib/thread/thread.cc 
b/gnuradio-runtime/lib/thread/thread.cc
index 5e5874e..8d1ef76 100644
--- a/gnuradio-runtime/lib/thread/thread.cc
+++ b/gnuradio-runtime/lib/thread/thread.cc
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /*
- * Copyright 2012-2013 Free Software Foundation, Inc.
+ * Copyright 2012-2014 Free Software Foundation, Inc.
  *
  * This file is part of GNU Radio
  *
@@ -72,7 +72,7 @@ namespace gr {
       DWORD_PTR ret = SetThreadAffinityMask(thread, dword_mask);
       if(ret == 0) {
         std::stringstream s;
-        s << "thread_bind_to_processor failed with error: " 
+        s << "thread_bind_to_processor failed with error: "
           << GetLastError() << std::endl;
         throw std::runtime_error(s.str());
       }
@@ -97,14 +97,14 @@ namespace gr {
       }
     }
 
-    int 
+    int
     thread_priority(gr_thread_t thread)
     {
       // Not implemented on Windows
       return -1;
     }
-    
-    int 
+
+    int
     set_thread_priority(gr_thread_t thread, int priority)
     {
       // Not implemented on Windows
@@ -164,14 +164,14 @@ namespace gr {
       // Not implemented on OSX
     }
 
-    int 
+    int
     thread_priority(gr_thread_t thread)
     {
       // Not implemented on OSX
       return -1;
     }
-    
-    int 
+
+    int
     set_thread_priority(gr_thread_t thread, int priority)
     {
       // Not implemented on OSX
@@ -262,7 +262,7 @@ namespace gr {
       }
     }
 
-    int 
+    int
     thread_priority(gr_thread_t thread)
     {
       sched_param param;
@@ -273,8 +273,8 @@ namespace gr {
       priority = param.sched_priority;
       return (ret==0)?priority:ret;
     }
-    
-    int 
+
+    int
     set_thread_priority(gr_thread_t thread, int priority)
     {
       int policy;
diff --git a/gr-audio/lib/osx/osx_sink.cc b/gr-audio/lib/osx/osx_sink.cc
index 2e1d32e..27329a2 100644
--- a/gr-audio/lib/osx/osx_sink.cc
+++ b/gr-audio/lib/osx/osx_sink.cc
@@ -57,18 +57,18 @@ namespace gr {
                       io_signature::make(0, 0, 0),
                       io_signature::make(0, 0, 0)),
         d_input_sample_rate(0.0), d_n_user_channels(0),
-       d_n_dev_channels(0), d_queue_sample_count(0),
-       d_buffer_sample_count(0), d_ok_to_block(ok_to_block),
-       d_do_reset(false), d_hardware_changed(false),
-       d_using_default_device(false), d_waiting_for_data(false),
-       d_desired_name(device_name.empty() ? default_device_name()
-                      : device_name),
-       d_output_au(0), d_output_ad_id(0)
+        d_n_dev_channels(0), d_queue_sample_count(0),
+        d_buffer_sample_count(0), d_ok_to_block(ok_to_block),
+        d_do_reset(false), d_hardware_changed(false),
+        d_using_default_device(false), d_waiting_for_data(false),
+        d_desired_name(device_name.empty() ? default_device_name()
+                       : device_name),
+        d_output_au(0), d_output_ad_id(0)
     {
       if(sample_rate <= 0) {
-       GR_LOG_ERROR(d_logger, boost::format
-                    ("Invalid Sample Rate: %d")
-                    % sample_rate);
+        GR_LOG_ERROR(d_logger, boost::format
+                     ("Invalid Sample Rate: %d")
+                     % sample_rate);
         throw std::invalid_argument("audio_osx_sink");
       }
       else {
@@ -94,51 +94,51 @@ namespace gr {
       std::vector < std::string > all_names;
 
       osx::find_audio_devices
-       (d_desired_name, false,
-        &all_ad_ids, &all_names);
+        (d_desired_name, false,
+         &all_ad_ids, &all_names);
 
       // check number of device(s) returned
 
       if (d_desired_name.length() != 0) {
-       if (all_ad_ids.size() == 1) {
+        if (all_ad_ids.size() == 1) {
 
-         // exactly 1 match was found; see if it was partial
+          // exactly 1 match was found; see if it was partial
 
-         if (all_names[0].compare(d_desired_name) != 0) {
+          if (all_names[0].compare(d_desired_name) != 0) {
 
-           // yes: log the full device name
-           GR_LOG_INFO(d_logger, boost::format
-                       ("Using output audio device '%s'.")
-                       % all_names[0]);
+            // yes: log the full device name
+            GR_LOG_INFO(d_logger, boost::format
+                        ("Using output audio device '%s'.")
+                        % all_names[0]);
 
-         }
+          }
 
-         // store info on this device
+          // store info on this device
 
-         d_output_ad_id = all_ad_ids[0];
-         d_selected_name = all_names[0];
+          d_output_ad_id = all_ad_ids[0];
+          d_selected_name = all_names[0];
 
-       } else {
+        } else {
 
-         // either 0 or more than 1 device was found; get all output
-         // device names, print those, and error out.
+          // either 0 or more than 1 device was found; get all output
+          // device names, print those, and error out.
 
-         osx::find_audio_devices("", false, NULL, &all_names);
+          osx::find_audio_devices("", false, NULL, &all_names);
 
-         std::string err_str("\n\nA unique output audio device name "
-                             "matching the string '");
-         err_str += d_desired_name;
-         err_str += "' was not found.\n\n";
-         err_str += "The current known output audio device name";
-         err_str += ((all_names.size() > 1) ? "s are" : " is");
-         err_str += ":\n";
-         for (UInt32 nn = 0; nn < all_names.size(); ++nn) {
-           err_str += "    " + all_names[nn] + "\n";
-         }
-         GR_LOG_ERROR(d_logger, boost::format(err_str));
-         throw std::runtime_error("audio_osx_sink::setup");
+          std::string err_str("\n\nA unique output audio device name "
+                              "matching the string '");
+          err_str += d_desired_name;
+          err_str += "' was not found.\n\n";
+          err_str += "The current known output audio device name";
+          err_str += ((all_names.size() > 1) ? "s are" : " is");
+          err_str += ":\n";
+          for (UInt32 nn = 0; nn < all_names.size(); ++nn) {
+            err_str += "    " + all_names[nn] + "\n";
+          }
+          GR_LOG_ERROR(d_logger, boost::format(err_str));
+          throw std::runtime_error("audio_osx_sink::setup");
 
-       }
+        }
       }
 
       // if no output audio device id was found, use the default
@@ -148,55 +148,55 @@ namespace gr {
 
         UInt32 size = sizeof(AudioDeviceID);
         AudioObjectPropertyAddress ao_address = {
-         kAudioHardwarePropertyDefaultOutputDevice,
-         kAudioObjectPropertyScopeGlobal,
-         kAudioObjectPropertyElementMaster
+          kAudioHardwarePropertyDefaultOutputDevice,
+          kAudioObjectPropertyScopeGlobal,
+          kAudioObjectPropertyElementMaster
         };
 
         err = AudioObjectGetPropertyData
-         (kAudioObjectSystemObject, &ao_address,
-          0, NULL, &size, &d_output_ad_id);
-       check_error_and_throw
-         (err, "Getting the default output audio device ID failed",
-          "audio_osx_sink::setup");
+          (kAudioObjectSystemObject, &ao_address,
+           0, NULL, &size, &d_output_ad_id);
+        check_error_and_throw
+          (err, "Getting the default output audio device ID failed",
+           "audio_osx_sink::setup");
 
-       {
-         // retrieve the device name; max name length is 64 characters.
+        {
+          // retrieve the device name; max name length is 64 characters.
 
-         UInt32 prop_size = 65;
-         char c_name_buf[prop_size];
-         bzero((void*)c_name_buf, prop_size);
-         --prop_size;
+          UInt32 prop_size = 65;
+          char c_name_buf[prop_size];
+          bzero((void*)c_name_buf, prop_size);
+          --prop_size;
 
-         AudioObjectPropertyAddress ao_address = {
-           kAudioDevicePropertyDeviceName,
-           kAudioDevicePropertyScopeOutput, 0
-         };
+          AudioObjectPropertyAddress ao_address = {
+            kAudioDevicePropertyDeviceName,
+            kAudioDevicePropertyScopeOutput, 0
+          };
 
-         if ((err = AudioObjectGetPropertyData
-              (d_output_ad_id, &ao_address, 0, NULL,
-               &prop_size, (void*)c_name_buf)) != noErr) {
+          if ((err = AudioObjectGetPropertyData
+               (d_output_ad_id, &ao_address, 0, NULL,
+                &prop_size, (void*)c_name_buf)) != noErr) {
 
-           check_error(err, "Unable to retrieve output audio device name");
+            check_error(err, "Unable to retrieve output audio device name");
 
-         } else {
+          } else {
 
-           GR_LOG_INFO(d_logger, boost::format
-                        ("\n\nUsing output audio device '%s'.\n  ... "
-                         "which is the current default output audio"
-                         " device.\n  Changing the default output"
-                         " audio device in the System Preferences"
-                         " will \n  result in changing it here, too "
-                         "(with an internal reconfiguration).\n") %
-                       std::string(c_name_buf));
+            GR_LOG_INFO(d_logger, boost::format
+                         ("\n\nUsing output audio device '%s'.\n  ... "
+                          "which is the current default output audio"
+                          " device.\n  Changing the default output"
+                          " audio device in the System Preferences"
+                          " will \n  result in changing it here, too "
+                          "(with an internal reconfiguration).\n") %
+                        std::string(c_name_buf));
 
-         }
+          }
 
-         d_selected_name = c_name_buf;
+          d_selected_name = c_name_buf;
 
-       }
+        }
 
-       d_using_default_device = true;
+        d_using_default_device = true;
 
       }
 
@@ -204,15 +204,15 @@ namespace gr {
       // output device
 
       osx::get_num_channels_for_audio_device_id
-       (d_output_ad_id, NULL, &d_n_dev_channels);
+        (d_output_ad_id, NULL, &d_n_dev_channels);
 
       // set the block input signature, if not already set
       // (d_n_user_channels is set in check_topology, which is called
       // before the flow-graph is running)
 
       if (d_n_user_channels == 0) {
-       set_input_signature(io_signature::make
-                            (1, d_n_dev_channels, sizeof(float)));
+        set_input_signature(io_signature::make
+                             (1, d_n_dev_channels, sizeof(float)));
       }
 
       // set the interim buffer size; to work with the GR scheduler,
@@ -220,12 +220,12 @@ namespace gr {
       // not very much.
 
       d_buffer_sample_count = (d_input_sample_rate < 50000.0 ?
-                              50000 : (UInt32)d_input_sample_rate);
+                               50000 : (UInt32)d_input_sample_rate);
 
 #if _OSX_AU_DEBUG_
       std::cerr << ((void*)(pthread_self()))
-               << " : audio_osx_sink: max # samples = "
-               << d_buffer_sample_count << std::endl;
+                << " : audio_osx_sink: max # samples = "
+                << d_buffer_sample_count << std::endl;
 #endif
 
       // create the default AudioUnit for output:
@@ -249,7 +249,7 @@ namespace gr {
       AudioComponent comp = AudioComponentFindNext(NULL, &desc);
       if(!comp) {
         GR_LOG_FATAL(d_logger, boost::format
-                    ("AudioComponentFindNext Failed"));
+                     ("AudioComponentFindNext Failed"));
         throw std::runtime_error("audio_osx_sink::setup");
       }
       err = AudioComponentInstanceNew(comp, &d_output_au);
@@ -261,42 +261,42 @@ namespace gr {
       Component comp = FindNextComponent(NULL, &desc);
       if(comp == NULL) {
         GR_LOG_FATAL(d_logger, boost::format
-                    ("FindNextComponent Failed"));
+                     ("FindNextComponent Failed"));
         throw std::runtime_error("audio_osx_sink::setup");
       }
       err = OpenAComponent(comp, &d_output_au);
       check_error_and_throw(err, "OpenAComponent Failed",
-                           "audio_osx_sink::setup");
+                            "audio_osx_sink::setup");
 
 #endif
 
       // set the selected device ID as the current output device
 
       err = AudioUnitSetProperty
-       (d_output_au, kAudioOutputUnitProperty_CurrentDevice,
-        kAudioUnitScope_Global, 0,
-        &d_output_ad_id, sizeof(d_output_ad_id));
+        (d_output_au, kAudioOutputUnitProperty_CurrentDevice,
+         kAudioUnitScope_Global, 0,
+         &d_output_ad_id, sizeof(d_output_ad_id));
       check_error_and_throw
-       (err, "Setting selected output device as current failed",
-        "audio_osx_sink::setup");
+        (err, "Setting selected output device as current failed",
+         "audio_osx_sink::setup");
 
       // Set up a callback function to generate output to the output unit
 
       AURenderCallbackStruct au_callback = {
-       reinterpret_cast<AURenderCallback>
-         (&osx_sink::au_output_callback),
+        reinterpret_cast<AURenderCallback>
+          (&osx_sink::au_output_callback),
         reinterpret_cast<void*>(this)
       };
       UInt32 prop_size = (UInt32)sizeof(au_callback);
 
       err = AudioUnitSetProperty
-       (d_output_au,
-        kAudioUnitProperty_SetRenderCallback,
-        kAudioUnitScope_Input, 0,
-        &au_callback, prop_size);
+        (d_output_au,
+         kAudioUnitProperty_SetRenderCallback,
+         kAudioUnitScope_Input, 0,
+         &au_callback, prop_size);
       check_error_and_throw
-       (err, "Set Render Callback",
-        "audio_osx_sink::setup");
+        (err, "Set Render Callback",
+         "audio_osx_sink::setup");
 
       // create the stream format for the output unit, so that it
       // handles any format conversions.  Set number of channels in
@@ -319,28 +319,28 @@ namespace gr {
       UInt32 render_quality = kRenderQuality_Max;
       prop_size = (UInt32)sizeof(render_quality);
       err = AudioUnitSetProperty
-       (d_output_au,
-        kAudioUnitProperty_RenderQuality,
-        kAudioUnitScope_Global, 0,
-        &render_quality, prop_size);
+        (d_output_au,
+         kAudioUnitProperty_RenderQuality,
+         kAudioUnitScope_Global, 0,
+         &render_quality, prop_size);
       check_error(err, "Setting render quality failed");
 
       // clear the RunLoop (whatever that is); needed, for some
       // reason, before a listener will work.
 
       {
-       CFRunLoopRef the_run_loop = NULL;
-       AudioObjectPropertyAddress property = {
-         kAudioHardwarePropertyRunLoop,
-         kAudioObjectPropertyScopeGlobal,
-         kAudioObjectPropertyElementMaster
-       };
-       prop_size = (UInt32)sizeof(the_run_loop);
-       err = AudioObjectSetPropertyData
-         (kAudioObjectSystemObject, &property, 0, NULL,
-          prop_size, &the_run_loop);
-       check_error(err, "Clearing RunLoop failed; "
-                   "Audio Output Device Listener might not work.");
+        CFRunLoopRef the_run_loop = NULL;
+        AudioObjectPropertyAddress property = {
+          kAudioHardwarePropertyRunLoop,
+          kAudioObjectPropertyScopeGlobal,
+          kAudioObjectPropertyElementMaster
+        };
+        prop_size = (UInt32)sizeof(the_run_loop);
+        err = AudioObjectSetPropertyData
+          (kAudioObjectSystemObject, &property, 0, NULL,
+           prop_size, &the_run_loop);
+        check_error(err, "Clearing RunLoop failed; "
+                    "Audio Output Device Listener might not work.");
       }
 
       // set up listeners
@@ -351,41 +351,41 @@ namespace gr {
 
       {
 
-       // set up a listener if hardware changes (at all)
+        // set up a listener if hardware changes (at all)
 
-       AudioObjectPropertyAddress property = {
-         kAudioHardwarePropertyDevices,
-         kAudioObjectPropertyScopeGlobal,
-         kAudioObjectPropertyElementMaster
-       };
+        AudioObjectPropertyAddress property = {
+          kAudioHardwarePropertyDevices,
+          kAudioObjectPropertyScopeGlobal,
+          kAudioObjectPropertyElementMaster
+        };
 
-       err = AudioObjectAddPropertyListener
-         (kAudioObjectSystemObject, &property,
-          reinterpret_cast<AudioObjectPropertyListenerProc>
-            (&osx_sink::hardware_listener),
-          reinterpret_cast<void*>(this));
-       check_error(err, "Adding Audio Hardware Listener failed");
+        err = AudioObjectAddPropertyListener
+          (kAudioObjectSystemObject, &property,
+           reinterpret_cast<AudioObjectPropertyListenerProc>
+             (&osx_sink::hardware_listener),
+           reinterpret_cast<void*>(this));
+        check_error(err, "Adding Audio Hardware Listener failed");
       }
 
       if (d_using_default_device) {
 
-       // set up a listener for the default output device so that if
-       // the device changes, this routine will be called and we can
-       // internally handle this change (if/as necesary)
-
-       {
-         AudioObjectPropertyAddress property = {
-           kAudioHardwarePropertyDefaultOutputDevice,
-           kAudioObjectPropertyScopeGlobal,
-           kAudioObjectPropertyElementMaster
-         };
-         err = AudioObjectAddPropertyListener
-           (kAudioObjectSystemObject, &property,
-            reinterpret_cast<AudioObjectPropertyListenerProc>
-              (&osx_sink::hardware_listener),
-            reinterpret_cast<void*>(this));
-         check_error(err, "Adding Default Output Audio Listener failed");
-       }
+        // set up a listener for the default output device so that if
+        // the device changes, this routine will be called and we can
+        // internally handle this change (if/as necesary)
+
+        {
+          AudioObjectPropertyAddress property = {
+            kAudioHardwarePropertyDefaultOutputDevice,
+            kAudioObjectPropertyScopeGlobal,
+            kAudioObjectPropertyElementMaster
+          };
+          err = AudioObjectAddPropertyListener
+            (kAudioObjectSystemObject, &property,
+             reinterpret_cast<AudioObjectPropertyListenerProc>
+               (&osx_sink::hardware_listener),
+             reinterpret_cast<void*>(this));
+          check_error(err, "Adding Default Output Audio Listener failed");
+        }
       }
 
 #else
@@ -393,20 +393,20 @@ namespace gr {
       // 10.5 and older
 
       err = AudioHardwareAddPropertyListener
-       (kAudioHardwarePropertyDevices,
-        reinterpret_cast<AudioHardwarePropertyListenerProc>
-          (&osx_sink::hardware_listener),
-        reinterpret_cast<void*>(this));
+        (kAudioHardwarePropertyDevices,
+         reinterpret_cast<AudioHardwarePropertyListenerProc>
+           (&osx_sink::hardware_listener),
+         reinterpret_cast<void*>(this));
       check_error(err, "Adding Audio Hardware Listener failed");
 
       if (d_using_default_device) {
 
-       err = AudioHardwareAddPropertyListener
-         (kAudioHardwarePropertyDefaultOutputDevice,
-          reinterpret_cast<AudioHardwarePropertyListenerProc>
-            (&osx_sink::default_listener),
-          reinterpret_cast<void*>(this));
-       check_error(err, "Adding Default Output Audio Listener failed");
+        err = AudioHardwareAddPropertyListener
+          (kAudioHardwarePropertyDefaultOutputDevice,
+           reinterpret_cast<AudioHardwarePropertyListenerProc>
+             (&osx_sink::default_listener),
+           reinterpret_cast<void*>(this));
+        check_error(err, "Adding Default Output Audio Listener failed");
 
       }
 
@@ -416,16 +416,16 @@ namespace gr {
 
       err = AudioUnitInitialize(d_output_au);
       check_error_and_throw
-       (err, "AudioUnit Initialize Failed",
-        "audio_osx_sink::setup");
+        (err, "AudioUnit Initialize Failed",
+         "audio_osx_sink::setup");
 
 
 #if _OSX_AU_DEBUG_
       std::cerr << ((void*)(pthread_self()))
-               << " : audio_osx_sink Parameters:" << std::endl
-               << "  Sample Rate is " << d_input_sample_rate << std::endl
-               << "  Max # samples to store per channel is "
-               << d_buffer_sample_count << std::endl;
+                << " : audio_osx_sink Parameters:" << std::endl
+                << "  Sample Rate is " << d_input_sample_rate << std::endl
+                << "  Max # samples to store per channel is "
+                << d_buffer_sample_count << std::endl;
 #endif
     }
 
@@ -433,8 +433,8 @@ namespace gr {
     {
 #if _OSX_AU_DEBUG_
       std::cerr << ((void*)(pthread_self()))
-               << " : audio_osx_sink::teardown: starting"
-               << std::endl;
+                << " : audio_osx_sink::teardown: starting"
+                << std::endl;
 #endif
 
       OSStatus err = noErr;
@@ -444,22 +444,22 @@ namespace gr {
       stop();
 
       if (d_using_default_device) {
-       // remove the listener
-
-       OSStatus err = noErr;
-       AudioObjectPropertyAddress property = {
-         kAudioHardwarePropertyDefaultOutputDevice,
-         kAudioObjectPropertyScopeGlobal,
-         kAudioObjectPropertyElementMaster
-       };
-       err = AudioObjectRemovePropertyListener
-         (kAudioObjectSystemObject, &property,
-          reinterpret_cast<AudioObjectPropertyListenerProc>
-            (&osx_sink::hardware_listener),
-          reinterpret_cast<void*>(this));
+        // remove the listener
+
+        OSStatus err = noErr;
+        AudioObjectPropertyAddress property = {
+          kAudioHardwarePropertyDefaultOutputDevice,
+          kAudioObjectPropertyScopeGlobal,
+          kAudioObjectPropertyElementMaster
+        };
+        err = AudioObjectRemovePropertyListener
+          (kAudioObjectSystemObject, &property,
+           reinterpret_cast<AudioObjectPropertyListenerProc>
+             (&osx_sink::hardware_listener),
+           reinterpret_cast<void*>(this));
 #if _OSX_AU_DEBUG_
-       check_error(err, "teardown: AudioObjectRemovePropertyListener "
-                   "hardware failed");
+        check_error(err, "teardown: AudioObjectRemovePropertyListener "
+                    "hardware failed");
 #endif
       }
 
@@ -495,15 +495,15 @@ namespace gr {
       // clear important variables; not # user channels
 
       d_n_dev_channels = d_n_buffer_channels =
-       d_queue_sample_count = d_buffer_sample_count = 0;
+        d_queue_sample_count = d_buffer_sample_count = 0;
       d_using_default_device = false;
       d_output_au = 0;
       d_output_ad_id = 0;
 
 #if _OSX_AU_DEBUG_
       std::cerr << ((void*)(pthread_self()))
-               << " : audio_osx_sink::teardown: finished"
-               << std::endl;
+                << " : audio_osx_sink::teardown: finished"
+                << std::endl;
 #endif
     }
 
@@ -514,15 +514,15 @@ namespace gr {
 
       if (d_output_au) {
 
-       UInt32 prop_size = (UInt32)sizeof(UInt32);
-       OSStatus err = AudioUnitGetProperty
-         (d_output_au,
-          kAudioOutputUnitProperty_IsRunning,
-          kAudioUnitScope_Global, 0,
-          &au_running, &prop_size);
-       check_error_and_throw
-         (err, "AudioUnitGetProperty IsRunning",
-          "audio_osx_sink::is_running");
+        UInt32 prop_size = (UInt32)sizeof(UInt32);
+        OSStatus err = AudioUnitGetProperty
+          (d_output_au,
+           kAudioOutputUnitProperty_IsRunning,
+           kAudioUnitScope_Global, 0,
+           &au_running, &prop_size);
+        check_error_and_throw
+          (err, "AudioUnitGetProperty IsRunning",
+           "audio_osx_sink::is_running");
 
       }
 
@@ -536,9 +536,9 @@ namespace gr {
       if(noutputs != 0) {
 
         GR_LOG_FATAL(d_logger, boost::format
-                    ("check_topology(): number of output "
-                     "streams provided (%d) should be 0.")
-                    % noutputs);
+                     ("check_topology(): number of output "
+                      "streams provided (%d) should be 0.")
+                     % noutputs);
         throw std::runtime_error
           ("audio_osx_sink::check_topology");
 
@@ -548,10 +548,10 @@ namespace gr {
       if((ninputs < 1) | (ninputs > (int) d_n_dev_channels)) {
 
         GR_LOG_FATAL(d_logger, boost::format
-                    ("check_topology(): number of input "
-                     "streams provided (%d) should be in [1,%d] "
-                     "for the selected output audio device.")
-                    % ninputs % d_n_dev_channels);
+                     ("check_topology(): number of input "
+                      "streams provided (%d) should be in [1,%d] "
+                      "for the selected output audio device.")
+                     % ninputs % d_n_dev_channels);
         throw std::runtime_error("audio_osx_sink::check_topology");
 
       }
@@ -562,8 +562,8 @@ namespace gr {
 
 #if _OSX_AU_DEBUG_
       std::cerr << ((void*)(pthread_self()))
-               << " : audio_osx_sink::check_topology: "
-               << "Actual # user input channels = "
+                << " : audio_osx_sink::check_topology: "
+                << "Actual # user input channels = "
                 << d_n_user_channels << std::endl;
 #endif
 
@@ -575,58 +575,58 @@ namespace gr {
     {
       if (d_buffers.size() == 0) {
 
-       // allocate the output circular buffer(s), one per user channel
+        // allocate the output circular buffer(s), one per user channel
 
-       d_buffers.resize(d_n_user_channels);
-       for(UInt32 nn = 0; nn < d_n_user_channels; ++nn) {
-         d_buffers[nn] = new circular_buffer<float>
-           (d_buffer_sample_count, false, false);
-       }
+        d_buffers.resize(d_n_user_channels);
+        for(UInt32 nn = 0; nn < d_n_user_channels; ++nn) {
+          d_buffers[nn] = new circular_buffer<float>
+            (d_buffer_sample_count, false, false);
+        }
       }
       else {
-       if(d_buffers.size() == d_n_user_channels) {
-         if (force_reset) {
-           for(UInt32 nn = 0; nn < d_buffers.size(); ++nn) {
-             d_buffers[nn]->reset();
-           }
-         }
-         return;
-       }
+        if(d_buffers.size() == d_n_user_channels) {
+          if (force_reset) {
+            for(UInt32 nn = 0; nn < d_buffers.size(); ++nn) {
+              d_buffers[nn]->reset();
+            }
+          }
+          return;
+        }
 
-       // reallocate the output circular buffer(s)
+        // reallocate the output circular buffer(s)
 
-       if (d_n_user_channels < d_buffers.size()) {
+        if (d_n_user_channels < d_buffers.size()) {
 
-         // too many buffers; delete some
+          // too many buffers; delete some
 
-         for (UInt32 nn = d_n_user_channels; nn < d_buffers.size(); ++nn) {
-           delete d_buffers[nn];
-           d_buffers[nn] = 0;
-         }
-         d_buffers.resize(d_n_user_channels);
+          for (UInt32 nn = d_n_user_channels; nn < d_buffers.size(); ++nn) {
+            delete d_buffers[nn];
+            d_buffers[nn] = 0;
+          }
+          d_buffers.resize(d_n_user_channels);
 
-         // reset remaining buffers
+          // reset remaining buffers
 
-         for(UInt32 nn = 0; nn < d_buffers.size(); ++nn) {
-           d_buffers[nn]->reset();
-         }
-       }
-       else {
+          for(UInt32 nn = 0; nn < d_buffers.size(); ++nn) {
+            d_buffers[nn]->reset();
+          }
+        }
+        else {
 
-         // too few buffers; create some more
+          // too few buffers; create some more
 
-         // reset old buffers first
+          // reset old buffers first
 
-         for(UInt32 nn = 0; nn < d_buffers.size(); ++nn) {
-           d_buffers[nn]->reset();
-         }
+          for(UInt32 nn = 0; nn < d_buffers.size(); ++nn) {
+            d_buffers[nn]->reset();
+          }
 
-         d_buffers.resize(d_n_user_channels);
-         for (UInt32 nn = d_buffers.size(); nn < d_n_user_channels; ++nn) {
-           d_buffers[nn] = new circular_buffer<float>
-             (d_buffer_sample_count, false, false);
-         }
-       }
+          d_buffers.resize(d_n_user_channels);
+          for (UInt32 nn = d_buffers.size(); nn < d_n_user_channels; ++nn) {
+            d_buffers[nn] = new circular_buffer<float>
+              (d_buffer_sample_count, false, false);
+          }
+        }
       }
 
       // reset the output audio unit for the correct number of channels
@@ -638,20 +638,20 @@ namespace gr {
       d_stream_format.mChannelsPerFrame = d_n_user_channels;
 
       err = AudioUnitSetProperty
-       (d_output_au,
-        kAudioUnitProperty_StreamFormat,
-        kAudioUnitScope_Input, 0,
-        &d_stream_format, sizeof(d_stream_format));
+        (d_output_au,
+         kAudioUnitProperty_StreamFormat,
+         kAudioUnitScope_Input, 0,
+         &d_stream_format, sizeof(d_stream_format));
       check_error_and_throw
-       (err, "AudioUnitSetProperty StreamFormat",
-        "audio_osx_sink::check_channels");
+        (err, "AudioUnitSetProperty StreamFormat",
+         "audio_osx_sink::check_channels");
 
       // initialize the AU for output, so that it is ready to be used
 
       err = AudioUnitInitialize(d_output_au);
       check_error_and_throw
-       (err, "AudioUnitInitialize",
-        "audio_osx_sink::check_channels");
+        (err, "AudioUnitInitialize",
+         "audio_osx_sink::check_channels");
     }
 
     bool
@@ -660,28 +660,28 @@ namespace gr {
       if(!is_running() && d_output_au) {
 
 #if _OSX_AU_DEBUG_
-       std::cerr << ((void*)(pthread_self()))
-               << " : audio_osx_sink::start: starting Output AudioUnit."
-                 << std::endl;
+        std::cerr << ((void*)(pthread_self()))
+                << " : audio_osx_sink::start: starting Output AudioUnit."
+                  << std::endl;
 #endif
 
-       // check channels, (re)allocate and reset buffers if/as necessary
+        // check channels, (re)allocate and reset buffers if/as necessary
 
-       check_channels(true);
+        check_channels(true);
 
-       // start the audio unit (should never fail)
+        // start the audio unit (should never fail)
 
         OSStatus err = AudioOutputUnitStart(d_output_au);
         check_error_and_throw
-         (err, "AudioOutputUnitStart",
-          "audio_osx_sink::start");
+          (err, "AudioOutputUnitStart",
+           "audio_osx_sink::start");
       }
 
 #if _OSX_AU_DEBUG_
       else {
-       std::cerr << ((void*)(pthread_self()))
-                 << " : audio_osx_sink::start: "
-                 << "already running." << std::endl;
+        std::cerr << ((void*)(pthread_self()))
+                  << " : audio_osx_sink::start: "
+                  << "already running." << std::endl;
       }
 #endif
 
@@ -694,46 +694,46 @@ namespace gr {
       if(is_running()) {
 
 #if _OSX_AU_DEBUG_
-       std::cerr << ((void*)(pthread_self()))
-                 << " : audio_osx_sink::stop: "
-                 << "stopping Output AudioUnit."
-                 << std::endl;
+        std::cerr << ((void*)(pthread_self()))
+                  << " : audio_osx_sink::stop: "
+                  << "stopping Output AudioUnit."
+                  << std::endl;
 #endif
 
-       // if waiting in ::work, signal to wake up
-       if (d_waiting_for_data) {
+        // if waiting in ::work, signal to wake up
+        if (d_waiting_for_data) {
 #if _OSX_AU_DEBUG_
-         std::cerr << ((void*)(pthread_self()))
-                   << " : audio_osx_sink::stop: "
-                   << "signaling waiting condition" << std::endl;
+          std::cerr << ((void*)(pthread_self()))
+                    << " : audio_osx_sink::stop: "
+                    << "signaling waiting condition" << std::endl;
 #endif
-         d_cond_data.notify_one();
-       }
+          d_cond_data.notify_one();
+        }
 
-       // stop the audio unit (should never fail)
+        // stop the audio unit (should never fail)
 
         OSStatus err = AudioOutputUnitStop(d_output_au);
         check_error_and_throw
-         (err, "AudioOutputUnitStop",
-          "audio_osx_sink::stop");
+          (err, "AudioOutputUnitStop",
+           "audio_osx_sink::stop");
 
-       // abort and reset all buffers
+        // abort and reset all buffers
 
         for(UInt32 nn = 0; nn < d_n_user_channels; ++nn) {
           d_buffers[nn]->abort();
           d_buffers[nn]->reset();
         }
 
-       // reset local knowledge of amount of data in queues
+        // reset local knowledge of amount of data in queues
 
-       d_queue_sample_count = 0;
+        d_queue_sample_count = 0;
 
       }
 #if _OSX_AU_DEBUG_
       else {
-       std::cerr << ((void*)(pthread_self()))
-                 << " : audio_osx_sink::stop: "
-                 << "already stopped." << std::endl;
+        std::cerr << ((void*)(pthread_self()))
+                  << " : audio_osx_sink::stop: "
+                  << "already stopped." << std::endl;
       }
 #endif
 
@@ -747,76 +747,76 @@ namespace gr {
     {
 #if _OSX_AU_DEBUG_RENDER_
       {
-       gr::thread::scoped_lock l(d_internal);
-       std::cerr << ((void*)(pthread_self()))
-                 << " : audio_osx_sink::work: "
-                 << "Starting: #OI = "
-                 << noutput_items << ", reset = "
-                 << (d_do_reset ? "true" : "false") << std::endl;
+        gr::thread::scoped_lock l(d_internal);
+        std::cerr << ((void*)(pthread_self()))
+                  << " : audio_osx_sink::work: "
+                  << "Starting: #OI = "
+                  << noutput_items << ", reset = "
+                  << (d_do_reset ? "true" : "false") << std::endl;
       }
 #endif
       if (d_do_reset) {
-       if (d_hardware_changed) {
-
-         // see if the current AudioDeviceID is still available
-
-         std::vector < AudioDeviceID > all_ad_ids;
-         osx::find_audio_devices
-           (d_desired_name, false,
-            &all_ad_ids, NULL);
-         bool found = false;
-         for (UInt32 nn = 0; (nn < all_ad_ids.size()) && (!found);
-              ++nn) {
-           found = (all_ad_ids[nn] == d_output_ad_id);
-         }
-         if (!found) {
+        if (d_hardware_changed) {
+
+          // see if the current AudioDeviceID is still available
+
+          std::vector < AudioDeviceID > all_ad_ids;
+          osx::find_audio_devices
+            (d_desired_name, false,
+             &all_ad_ids, NULL);
+          bool found = false;
+          for (UInt32 nn = 0; (nn < all_ad_ids.size()) && (!found);
+               ++nn) {
+            found = (all_ad_ids[nn] == d_output_ad_id);
+          }
+          if (!found) {
 
-           GR_LOG_FATAL(d_logger, boost::format
-                        ("The selected output audio device ('%s') "
-                         "is no longer available.\n")
-                        % d_selected_name);
-           return(gr::block::WORK_DONE);
+            GR_LOG_FATAL(d_logger, boost::format
+                         ("The selected output audio device ('%s') "
+                          "is no longer available.\n")
+                         % d_selected_name);
+            return(gr::block::WORK_DONE);
 
-         }
+          }
 
-         d_do_reset = d_hardware_changed = false;
+          d_do_reset = d_hardware_changed = false;
 
-       }
-       else {
+        }
+        else {
 
 #if _OSX_AU_DEBUG_RENDER_
-         {
-           gr::thread::scoped_lock l(d_internal);
-           std::cerr << ((void*)(pthread_self()))
-                     << " : audio_osx_sink::work: "
-                     << "doing reset." << std::endl;
-         }
+          {
+            gr::thread::scoped_lock l(d_internal);
+            std::cerr << ((void*)(pthread_self()))
+                      << " : audio_osx_sink::work: "
+                      << "doing reset." << std::endl;
+          }
 #endif
 
-         GR_LOG_WARN(d_logger, boost::format
-                     ("\n\nThe default output audio device has "
-                      "changed; resetting audio.\nThere may "
-                      "be a sound glitch while resetting.\n"));
+          GR_LOG_WARN(d_logger, boost::format
+                      ("\n\nThe default output audio device has "
+                       "changed; resetting audio.\nThere may "
+                       "be a sound glitch while resetting.\n"));
 
-         // for any changes, just tear down the current
-         // configuration, then set it up again using the user's
-         // parameters to try to make selections.
+          // for any changes, just tear down the current
+          // configuration, then set it up again using the user's
+          // parameters to try to make selections.
 
-         teardown();
+          teardown();
 
-         gr::thread::scoped_lock l(d_internal);
+          gr::thread::scoped_lock l(d_internal);
 
-         setup();
-         start();
+          setup();
+          start();
 
 #if _OSX_AU_DEBUG_RENDER_
-         std::cerr << ((void*)(pthread_self()))
-                   << " : audio_osx_sink: "
-                   << "returning 0 after reset."
-                   << std::endl;
+          std::cerr << ((void*)(pthread_self()))
+                    << " : audio_osx_sink: "
+                    << "returning 0 after reset."
+                    << std::endl;
 #endif
-         return(0);
-       }
+          return(0);
+        }
       }
 
       gr::thread::scoped_lock l(d_internal);
@@ -841,8 +841,8 @@ namespace gr {
 
 #if _OSX_AU_DEBUG_RENDER_
       std::cerr << ((void*)(pthread_self()))
-               << " : audio_osx_sink::work: "
-               << "qSC = " << d_queue_sample_count
+                << " : audio_osx_sink::work: "
+                << "qSC = " << d_queue_sample_count
                 << ", lMC = "<< l_max_count
                 << ", dBSC = " << d_buffer_sample_count
                 << ", #OI = " << noutput_items << std::endl;
@@ -858,36 +858,36 @@ namespace gr {
         if(d_ok_to_block == true) {
           // block until there is data to return, or on reset
           while(d_queue_sample_count > l_max_count) {
-           // release control so-as to allow data to be retrieved;
-           // block until there is data to return
+            // release control so-as to allow data to be retrieved;
+            // block until there is data to return
 #if _OSX_AU_DEBUG_RENDER_
-           std::cerr << ((void*)(pthread_self()))
-                     << " : audio_osx_sink::work: "
-                     << "waiting." << std::endl;
+            std::cerr << ((void*)(pthread_self()))
+                      << " : audio_osx_sink::work: "
+                      << "waiting." << std::endl;
 #endif
-           d_waiting_for_data = true;
-           d_cond_data.wait(l);
-           d_waiting_for_data = false;
+            d_waiting_for_data = true;
+            d_cond_data.wait(l);
+            d_waiting_for_data = false;
 #if _OSX_AU_DEBUG_RENDER_
-           std::cerr << ((void*)(pthread_self()))
-                     << " : audio_osx_sink::work: "
-                     << "done waiting." << std::endl;
+            std::cerr << ((void*)(pthread_self()))
+                      << " : audio_osx_sink::work: "
+                      << "done waiting." << std::endl;
 #endif
-           // the condition's 'notify' was called; acquire control to
-           // keep thread safe
+            // the condition's 'notify' was called; acquire control to
+            // keep thread safe
 
-           // if doing a reset, just return here; reset will pick
-           // up the next time this method is called.
-           if (d_do_reset) {
+            // if doing a reset, just return here; reset will pick
+            // up the next time this method is called.
+            if (d_do_reset) {
 #if _OSX_AU_DEBUG_RENDER_
-             std::cerr << ((void*)(pthread_self()))
-                       << " : audio_osx_sink::work: "
-                       << "returning 0 for reset." << std::endl;
+              std::cerr << ((void*)(pthread_self()))
+                        << " : audio_osx_sink::work: "
+                        << "returning 0 for reset." << std::endl;
 #endif
-             return(0);
-           }
-         }
-       }
+              return(0);
+            }
+          }
+        }
       }
 
       // not blocking and overflow is handled by the circular buffer,
@@ -904,14 +904,14 @@ namespace gr {
         int l_res = d_buffers[nn]->enqueue(inBuffer, noutput_items);
         if(l_res == -1) {
           res = -1;
-       }
+        }
       }
       while(nn < d_n_user_channels) {
         // for extra channels, copy the last input's data
         int l_res = d_buffers[nn++]->enqueue(inBuffer, noutput_items);
         if(l_res == -1) {
           res = -1;
-       }
+        }
       }
 
       // did overflow occur?
@@ -930,8 +930,8 @@ namespace gr {
 
 #if _OSX_AU_DEBUG_RENDER_
       std::cerr << ((void*)(pthread_self()))
-               << " : audio_osx_sink::work: "
-               << "returning: #OI = "
+                << " : audio_osx_sink::work: "
+                << "returning: #OI = "
                 << noutput_items << ", qSC = "
                 << d_queue_sample_count << ", bSS = "
                 << d_buffer_sample_count << std::endl;
@@ -960,11 +960,11 @@ namespace gr {
 
 #if _OSX_AU_DEBUG_RENDER_
       std::cerr << ((void*)(pthread_self()))
-               << " : audio_osx_sink::au_output_callback: "
-               << "starting: qSC = "
-               << This->d_queue_sample_count
+                << " : audio_osx_sink::au_output_callback: "
+                << "starting: qSC = "
+                << This->d_queue_sample_count
                 << ", in#F = " << in_number_frames
-               << ", in#C = " << This->d_n_user_channels << std::endl;
+                << ", in#C = " << This->d_n_user_channels << std::endl;
 #endif
 
       if(This->d_queue_sample_count < in_number_frames) {
@@ -994,7 +994,7 @@ namespace gr {
                       << "unexpectedly (should never happen): was "
                       << in_number_frames << " now "
                       << t_n_output_items<< std::endl;
-           err = kAudioUnitErr_TooManyFramesToProcess;
+            err = kAudioUnitErr_TooManyFramesToProcess;
 
           }
         }
@@ -1006,19 +1006,19 @@ namespace gr {
 
       if (This->d_waiting_for_data) {
 #if _OSX_AU_DEBUG_RENDER_
-       std::cerr << ((void*)(pthread_self()))
-                 << " : audio_osx_sink::au_output_callback: "
-                 << "signaling waiting condition" << std::endl;
+        std::cerr << ((void*)(pthread_self()))
+                  << " : audio_osx_sink::au_output_callback: "
+                  << "signaling waiting condition" << std::endl;
 #endif
-       This->d_cond_data.notify_one();
+        This->d_cond_data.notify_one();
       }
 
 #if _OSX_AU_DEBUG_RENDER_
       std::cerr << ((void*)(pthread_self()))
-               << " : audio_osx_sink::au_output_callback: "
-               << "returning: qSC = "
+                << " : audio_osx_sink::au_output_callback: "
+                << "returning: qSC = "
                 << This->d_queue_sample_count
-               << ", err = " << err << std::endl;
+                << ", err = " << err << std::endl;
 #endif
 
       return (err);
@@ -1043,7 +1043,7 @@ namespace gr {
 #endif
     {
       osx_sink* This = static_cast
-       <osx_sink*>(in_client_data);
+        <osx_sink*>(in_client_data);
       This->reset(true);
       return(noErr);
     }
@@ -1067,7 +1067,7 @@ namespace gr {
 #endif
     {
       osx_sink* This = reinterpret_cast
-       <osx_sink*>(in_client_data);
+        <osx_sink*>(in_client_data);
       This->reset(false);
       return(noErr);
     }



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